{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["cities of residence", "state or province of headquarters", "title of person", "state or provinces of residence"], "input": "At the time   a former mauthausen prisoner whom he knew from the concentration camp was the president of  Czechoslovakia  ."}
{"cities of residence": [], "state or province of headquarters": [], "title of person": [], "state or provinces of residence": []}